﻿/*********全屏**********/
button{
 border:1px solid #ccc;
 cursor:pointer;
  display:block;
  margin:auto;
  position:relative;
  top:100px;
}
.fullScreen{
 padding-top:10%;
 text-align:center;
 background: none repeat scroll 0 0 #FFFFFF;
}
/* Mozilla proposal (dash) */
.fullScreen:full-screen {
    width:100%;
    height:100%;
}
/* W3C proposal (no dash) */
.fullScreen:fullscreen {
    width:100%;
    height:100%;
}
/* currently working vendor prefixes */
.fullScreen:-webkit-full-screen, .fullScreen:-moz-full-screen {
    width:100%;
    height:100%;
}
:-webkit-full-screen{
width:100%;
    height:100%;
}